Nabais Sa-De Vries Syndrome, Type 2, is also known as neurodevelopmental disorder with relative macrocephaly and with or without cardiac or endocrine anomalies. An important gene associated with Nabais Sa-De Vries Syndrome, Type 2 is SPOP (Speckle Type BTB/POZ Protein). Affiliated tissues include heart and kidney, and related phenotypes are intellectual disability and delayed speech and language development